Type-writer ribbon-feed.



L. P. DISS. TYPE WRITER RIBBON FEED. APPLICATION FILED NOV. 14, 1907.

WFINESSES: QM 6*. W12

INVENTOR 5 Q J ,M. iiwfl.

ATTORNEYS snares ,sisl

Letters Est-ens. Patented New". 1'3, 1908.

Application filed November 1 E367. Serial its. $02,663.

To all whom it may concern: I

Be it known that I, LOUIS P. D es. Ihon, in the county of Herkii'ner andSta e New York, have invented certain new and useful improvements inType-W er Rihbz'm Feeds: and e h reh}; declare that the foisowi 1 a. a1,and exact. de scription L wh trill enabie others skilled in t to whichit appertains to make same reference being to the arr- A ng Wings. tothe letters of reference marks thereon, which form part. this specific Te object of in? present lllVQZlUOH is to provide an. imp= ribbon feedingin anisrn for type ing machines, which is simple and eiiicient in Ioperation and arranged to automatically reverse the feed of the ribbon.

Fi 'iire 1 shows a partial sectional View of the .rame of the typewritermachine with my improved mechanism in position therein. Fig. .2 is aplan view of part of a type- -writer machine with my improved mechanismintroduced therein. Fig. 3 is a cross sectional view through one of thespools constituting 5 portion of the mechanism, this section heingtalreh at angles to the section shown in Fig. l. Flg. 4 is an enlargeddetail showing features of the device, in connection with a section of aportion of the much of z 3* is as is tosses sary to illustrs; n.

Referri te th-e d. is usually terms-t p oist-s per portion oi the IL oithe machine. In.

he or opposite corners of the top of the mac top plate a there proviidep es 'b-b adapted to receive :Lnr 1 of the mechanism. lrnmezi cups Z)are located the ribbon spec the seine? sing: mounted on e ing' sgindieis the cup 5 and projecting we lly. the lower end er the sleeve (Z thereis pro- "v'ided e gear ninicn f to the sleeve and thiis to the col so onthe spindle a when newer is applied. In the plane of the pinion thereis' provided the driving pinion g adapted to mesh there was. and mounteden the swinging upper end of the shaft h. The shaft hat its l'owfver 18provided with a gear pinion i mesh ng with a gear pinion. j on thehorizontal shaft The shaft 7'; is mounted in suitable fixed hearing thetrains and provides bearings for the .illeting hanger Z having bearingswhich the shaft 71 is mounted. There is a shaft ll: on each side of themachine, and these shafts are provided at their rear ends with hevr. lgear pinions m me k; with beveled g'clu pinions 'il provided in the heckshaft 0. Power for driving the ribbon spools is applied to the shaft 0and causes t e shafts is and ?a on the one side of the 1111 1e to rotatein unison with the similar shaft on the other side of the machine but inthe op posite direction. The upper sfx'l'flgiilg ends of the hangers Zon the opposite sides of the machine are connected by a rod which spacesthese hangers at such a distance that only one at a time of the gearpiuions Q can engage the pinion 1" connected with the spool. This rod pis provided with a projection Q having preferably three teeth engaged bya spring click 1" mounted on the frame.

. Attached to the underside of the spool lay the depending arms 8, whichare preferably connected at their upper ends by a semi-circulai bar It,is the semi-circular cam carrier 14-, This cam carrier u at its oppositeextremities is hinged to the lower ends of arms s indicated by s.Thee-am provided with a cam or pted to engage with the f and preferablyprovided on face with three or fouri'c th of .pe to adapt them to me"1th i or" the pinion For con sition of the cam carrier 11. i with arm2:: Whicl through a slotted opening 1; things of 1 upper end nst 'suihcientl under e x, to permitthe tee h of find their meshing pomingthe c; I I-EGIL The coin and the gears quite sharp at the A l tatetheir entering.

PY: n25; 1E

The ribbon, of course, is attached at each end to the core of the.spools c and betweenthe spools passes in close position to the clinedposition shown in Fig. 4 where the cam will not engage with the gearpinion g as the spool revolves. When, however, the ribbonhas beenunwound from a spool sufficiently to release the arm w, the cam carrierdrops into its horizontal position, as shown in dotted lines in Fig. 4.Then as the spool c revolves under the influence of the ribbon beingunwound therefrom, the cam v is brought around into position to engagewith the gear g.- As the gear 9 is always driven, it furnishes its ownpower to force the cam a past itself and in so doing the gear 9 isforced over by the cam towards the gear f. In this operation the springclick rvride's out of one of the depressions in which the point engagesand sufliciently over the high point so that the action of the springclick completes the movement and throws the gear 9 out of engagementwith the cam v and into engagement with the'gear 7. By I reason of theconnecting .rod p when the gear pinion g of one side of the machine isbeing thrown into engagement with the gear pinion f on that side, theone on the opposite side is thrown out making the spool on the oppositeside of the machine then the free spool. Thefirst partial revolution ofthe empty spool causes the ribbon to bind the swinging end of the arm wagainst the core and elevates the cam carrier into its inoperativeposition. It is obvious-that the spool driving mechanism may be shiftedmanually at anytime, and for this purpose a knob or handle 2 isprovided.

. While the teeth on the cam a are preferable, it is obvious that theteeth may be omitted and that other modifications and changes in theconstruction can be made without departing from the spirit of myinvention.

by Letters Patent is:

1. The combination in a typewriter of a What I claim as new and desireto secure f ribbon spool having a driving pinion atshafts arranged atangles the secondary shaft arranged to engage the pinion on the spooland i'nean's' forshl'fting,

the 'osition of said pinion,-

ribbon spacebf the. 'spool,.- substantially as and connected for setorth.

substantially as 2. The combination in a typewriter of a a pair ofribbon spools each having pinions at tached, primary and secondary,driving shafts for each spool arranged at angles and connected forrotation, a swinging hanger mounted on bearings concentric with the.

primary shaft and carrying the secondary shaftjin bearings therein,pinions on the swinging ends of said secondary shafts respectivelyarranged to engage the pinions of the spools respectively, a connectionbetween the said hangers, and means for shifting the 1 position of saidhangers to .engage'and dis-- engage the pinions carried" thereb'ywiththe spool pinions, substantially as set forth,-

3. The combination in a typewriter ma-z chine of a ribbon spool havmg a,gear pinion attached, a movable driving pinion adapted to engage anddisengage said spool" pinion, a movable cam carrier mounted on the spooland adapted .to swing around the said driving ,pinion, a cam mounted-onthe, carrier andadapted to engage and move the driving gear pinion, anda controlling arm on the cam carrier projecting into the ribbon spaceof.,the spool, substantially as set forth.

4. The combination'in a typewriterma.- chine of a ribbon spool having agear pinion attached, a movable driving pinion adapted to. engage anddisengage said spool pinion, a movable cam carrier mounted 'on the spoolby spring arms and adapted to swing around the said driving pini'on, acam mounted on the carrier and adaptedto engage and move the drivinggear pinion, and a controlling arm on the cam carrier projecting intothe set forth. I

movable cam carrier mounted on the spool by means of spring arms andstops to limitthe movement of said spring arms, the cam '10s, 5. The,combination in a 'ty'pewriterma carrier arranged to swing around'thesaid] driving pinion, a cammounted on the carrier and adapted to engageand move the driving gear pinion, anda controlling arm on the camcarrier projecting into the ribbon space of the spool, substantiallyasset forth.-

, 6. Thecombination in a typewriter machine of a ribbon spool having agear pinion attached, a movable driving pinion adapted arranged to swingaround the said driving '7 pinion,- and a cam mounted, on the carrierand adapted tO-enga'ge and move thedriving under tension ;,aga'inst thestops to the free .ends of'which the-cam carrier is hinged and spoolpinions respectively, amovable can ing gear pinion, and a controllingarm on the cam carrier projecting into the'ribbon space of the spool,substantially as set forth.

7 The combination in a typewriter machine of a pair of ribbon spoolseach having a gear pinion attached, movable driving pinions adapted toengage and disengage said carrier carried by each of said spools adaptedto engage the driving pinion and shift the position of the same, aconnection betWeen'the driving pinions of each spool spacing the pinionsso that only one at a time can be in driving engagement, a toothon said'connection, and a spring CllCk for securing the position of the pinionsand assisting their movement, substantially as set forth.

8. The combination in a'typewriter machine ofa pair of ribbon spools,each having a gear pinion attached, movable driving pinions adapted toengage and be disengaged from said spool pinions respectively,swinghangers ha'vin bearings carrying the shaftsof said driving pinionsrespectively,

a connection between the hangers of sa1dshafts arranged to space thepinions so thatonly one shall be in driving position at a time, camsmounted on the spools and adapted to throw in said driving pinionsrespectively, and a spring click assisting the movementof throwing inthe driving pinion,-substantially as set forth.

9. In a typewriting machine a pair of ribbon spools, a pair 0 shiftabledriving pinionsfor said spools adapted to alternately

